Sheet registering mechanism



y 1932- F. REMINGTON 1,866,579

SHEET REGISTERING MECHANISM Filed March 3. 1950 5 Sheets-Sheet 2 y 1932. L. F. REMINGTON 1,866,579

SHEET REGI STERING MECHANI SM Filed March 3. 1930 3 Sheets-Sheet 5 avwewtoz 3391 11A @lbboww Patented July 12, 1932 UNITED STA LEONARD F. REMINGTON, F FRANKLIN, MASSACHUSETTS, ASSIGNOR TO THOMSON res PATENT "OFFICE mama NATIONAL PRESS "CO. INC., .A CORPORATION OF DELAWARE SHEET REGISTERING IVIECI-IANISM Application filed March 3,

This invention relates to sheet registering mechanisms for cutters, creasers, embossing or printing presses and other like machines.

The object of the invention is to provide a gnovel sheet registering mechanism which permits the sheet to be fed to the platen to a dead line stop, and thereafter registers the releasing the said registering mechanism.

This in turn caused inexact positioning of A sheet registering mechanism capable of. operation as aforesaid is of particular value and advantage in connection with creasers, cutters and embossing presses which operate on heavy sheets which often must be utilized very close to the edges so that very exact register and centralization is required in order to increase production and avoid waste. Another factor in the operation of heavy. presses is that they are very often provided with high speed automatic feeders, in which case it has heretofore been necessary to rely, partly at least, upon the sheet sliding into desired position, because the ..,.feeding mechanism is quickly retracted.

the sheet with consequent poor work and waste.

In the present instance, the sheet is fed to a dead stop directly against the front gages. Thereafter and before the press closes, the front gages are registered to position the sheet'and, at the same time, the side register is operated. The result is an exact registering of the sheet in the most favorable position on the platen. v 1

Accordingly the invention is embodied in a registering mechanism which may include both front and side register, or. front register alone. The mechanism is. adapted tomove the sheet upwards or backwards on the platen to register it and the sideregistering means are adaptedto be operated simultaneiously therewith from either side as may be "desired. In the accompanying drawings'il 1930. fierial No. 482,875.

lustrating the preferred form of the invention. 7

Fig. l-is a face view of the platen equipped with the improved frontand side registering mechanism, parts being broken awayand parts being in section.

the platen in closed omitted or broken away.

Fig. 3 is a similar view but shows the platen in open position. x

Fig. 4 is a detail view Fig. 2 is a side view of the press showing position, parts being 6 of the front edge registering mechanism shown on the left side of the platen in Figure 1,pa'rts being broken away. 7

Fig.5 is a top view of the side registering.

mechanism on the right side of Figure 1 with parts broken away.

Referring first to Figures 1 and 2, the press illustrated is of a well known type of heavy duty cre'aser, cutter or embossing press which in general comprises a framework 1 having a fixed bed 2 and a rockingplaten 3,

operated by means of connecting rods ,4 and 5. The bed supports a chase 6 which in turn supports the form or die 7.

The front edge registering mechanism,

.Fig. 1, consists of a registerbar 10 which carries two gages 11, 11 in the usual form of adjustable clips which are raised to act as stops for the front edge of the sheet.

The bar 10 is adjustably carried by two lifting rods 12, 12, which slide in guides 13,

13 secured to the sides of the platen. At the v top, the lifting rods 12 slide in registering brackets 14 and 15. vThe bracket lt serve-s" only as a front edge registering bracket,

while the bracket 15 alsoserves to support the side registering mechanism. Each lifting rod carries a stop collar 17 The lifting rodsare lifted rodlifters 18, 18, which latter are in the form of square blocks secured to the rods by screws 19, 19. Each of the rod lifters 18 carries two depending'pins 20, 20, and on the latter slides a roller bear-ing 21 which supports 'a,

lifting roller 22. A cushioning spring23 is by means of interposed between the roller bearing and the rod lifter on each side of the platen.

The rod lifters 18 carry locking pawls 25,

25 adapted to engage with latches 26, 26 pivoted at 27, 27 on the registering brackets 14 and 15. A return spring 28, see Figures 2 and 3 extends between the stop pawls 25 and the platen.

On the press itself or to the feeder frame 30 thereof, if such a frame is provided as indicated in Figure 2, there is fastened a bracket 31 on which is pivoted a release pawl 32, one on each side; The release pawls are adapted to be engaged by the latches 26 as seen in Figure 2.

In operation, the operator loosens the screws 19 and places a sheet on the platen to determine the registered or centralized pos ition desired and slides the register bar and stop gages up on the rods 12 to the position which the leading or bottom edge of the sheet occupies when it is registered. This position is determinedby the particular condition of the make ready box or die, the object being to centralize the sheet so as to obtain an even perfect impression when the press closes.

Having determined this position, the rod lifters 18 are moved up into contact with the brackets 14 and 15, and screwed fast to the rods 12 by the screws 19.

The press isthen turned over or operated and a sheet is dropped onthe platen against the stop gages 11 which project beyond the bar 10 so that the sheet is stopped a short distance away from the bar, which makes it possible to utilize the sheet clear toits bottom edge. The gages are adjusted along the bar 10 to positions most advantageous for the particular job to be done on the press,

To each connecting rod there is secured a shoe 34, and as now the press close, the connecting rods rise and the shoes engage the two lifting rollers 22. As the latter tends to rise and slide upwards on the pins 20, the roller bearings 21 compress thesprings 23 slightly against the rod lifters 18 and lift the latter.

At this time, therefore, the lifting rollers will lift the rod lifters 18, the rods 12 and the bar 10 and through these instrumentalitie's lift the sheet 40, Figure 21, into registered position. The parts are so arranged and designed, that when the sheet has been lifted to registered position, the locking pawls 25 engage the latches 26 thus locking the rod lifters 18 and preventing further upward movement of the sheet. At this time the rod lifters 18 will have been seated against the registering brackets 14 and 15, and any further upwards movement by the rollers 22 and their bearings 21 is taken up by the springs 23.

This movement, of registering the sheet andlocking the registering mechanism, is finished shortly before impression, thus allowing the sheet to settle and come to a dead stop position before being cut, creased or printed.

The platen now closes on the form and the latches 26 pass in under and engage the release pawls 32, Figure 2. When the press opens, the release pawls 32 pull the latches 26 out of engagement with the locking pawls 25 and the return springs 28 pull the rod lifters 18 down into the position shown in Figure 3' and the registering mechanism is returned to its original position in which it is stopped by the stop collars 17 beingpulled downagainst the guides 13. Auxiliary springs 41 and 42 are used to insure the engagements of the pawls 25 and 32 with the latches 26 in an obvious manner, see Figure 2.

From the foregoing it will be seen that this invention provides a mechanism which may be adjusted to register the sheet in de sired position by adjustment of the gages 11 on the bar 10, and the adjustment of the latter on the rods 12. The return movement} is fixed by adjusting the collars 17 on the rods 12. The sheet is fed to a bottom position against the ages and thereafter lifted to desired positlon with the mechanism locked during impression. Another feature of the mechanism resides in the fact that if required, a sheet may be registered on the platen in a position not necessarily parallel to the sides thereof. This may be, accomplished by setting the rod holders at different distance from the brackets.

The side register mechanism operates to shift the sheet on the platen transversely into register with or against a side stop 45 which is ailixed to the platen in the usual manner. The mechanism is timed to. start the instant the sheet has been centralized or front-registered. The sheet is shifted by a registering finger 46 which is adjustably carried in a bearing 47.

The lateral body of the finger is clampedin the bearing and may be adjusted by a sliding movement therein. The bearing 47 is pivoted at 48 on a slide 49. The latter has an adjustable stop screw 50 against.

which the register finger is held by a spring 51. lVhen the finger moves the sheet against the side stop 45, the spring 51 permits small variations of movement as is'obvious. I

The slide 49 moves on two lateral rods 52 by means of an operating lever 53-pivoted to the slide at 54, see Figures 2 and 3. The

lever in turn is pivoted 55 on the side registering bracket 15 and is actuated by contact with the shoe 34 on the connecting rod 4.

As the connecting rod 4 rises on the close of the press, it acts like a wedge on the operating lever 53 and causes the slide 49 to move toward the platen and thereby actuatcs the registering finger to shift the sheet as will be understood. The continuing contact of the shoe with the lever insures that the sheet. remains against the stop 45 in sideregistered position. The spring 60 acting between the bracket 15 and the lever 53 returns the side registering means to original position when the press opens. The side register may be made right or left by changing the registering brackets. If the sheet to be registered is of a size substantially equal to the size of the platen, the reglstering mechanism is made inactive by adjusting the rod lifters 18 against the registering brackets so that no lifting movement can occur and to this case the sheet is fed down to the bottom of the platen against the gages 11.

From the foregoing it will be seen that the registering mechanism herein disclosed provides means for stopping the sheet in the position in which it is placed after which the sheet is centralized and side-registered, centralization in this case meaning moving the sheet into the most favorable position for the Work to be done.

I claim:

1. The combination with a platen press, the platen and its operating means, of gages for arresting the initial feeding movement of a sheet placed upon the platen, means automatically operable during the closing movement of the platen for causing said gages to move the sheet into a predetermined position on the platen, automatic means for locking the gages against further movement when the said predetermined position has been reached, automatic means for unlocking the gages when the press opens and automatic means for returning the gages to initial positions.

2. The combination with a platen press,

the platen and its operating means, of sheet registering devices comprising means for moving the sheet sequentially longitudinally and transversely on the platen, means for supporting and guiding the said sheet movmg means for actuating the sheet moving means sequentially as aforesaid.

3. The combination with a platen press, the platen and its operating means, of gages for registering the leading edge of a sheet upon the platen, gage operating means carried by the platen and automatically actuatable during the closing movement thereof, cooperating latching means on the gage operating means and the platen for locking the gages after they have been operated, release pawls supported on the press for unlocking the gages when the press opens and a spring for returning the gages'to initial position.

LEONARD F. REMINGTON.

ing means and means on the platen operat- 

